Support Analysis of Driving Face through Broken Roof Area
In the process of coal mine roadway excavation,the roof of some geological structure areas is relatively broken,which has a huge impact on the safety of excavation.Combined with the actual geological condition of 405 working face of A Coal Mine,the support scheme adopted by the roadway driving through the broken roof area was discussed.Firstly,a detailed lithology detection scheme was developed for the broken roof area.Then,according to the actual situation,the permanent support and temporary support were designed.Finally,the construction management of the support in passing through broken area was analyzed,which can provide some technical reference for roadway support under special geological conditions.
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